|On the 25th day of April, the forces under Eaton and O'Bannon reached Derne and terms of surrender were offered to the enemy. The flag of truce was immediately returned. "My head or yours," came the reply from the Government's stronghold.
O'Bannon then swung into action. With the support of naval gunfire from American ships in the harbor and accompanied by his seven Marines, he spearheaded a bayonet charge which resulted in the capture of the fort on 27 April, 1805. O'Bannon personally lowered the Tripolitian flag and hoisted the Stars and Stripes for the first time on foreign soil, securing the War with Tripoli.
Hamet Karamanli promptly took as ruler of Tripoli and presented the Marine lieutenant with his personal jeweled sword, the same type used by his Mameluke tribesmen. Today, Marine officers still carry this type of sword, commemorating the Corps' service during the Tripolitian War, 1801 - 05.
Appropriately, the actions of O'Bannon and his small group of Marines are commemorated in the second line of the Marines' Hymn with the words, "To the Shores of Tripoli". These same words were also inscribed across the top of the Marine Corps' first standard, adopted around 1800.
origin of american marine swords come from mameluke (egypt-turkish state)
history is very interesting!